Smoopa

From a former Googler and his cadre of MIT buds, Smoopa's a free app that lets you scan in-store barcodes to determine if you're landing a good deal (and if not, show where you can score it cheaper), all in an effort to let you "shop with confidence", so basically it took an MIT education for them to learn that you have to strut into the Galleria with mad Bod Man spray.